Re: Linux 5.10-rc4; graphics alignment

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Hi

Am 20.11.20 um 10:52 schrieb David Laight:
Hi David

Am 18.11.20 um 23:01 schrieb David Laight:
...
Did you try Daniel's suggestion of testing with the direct parent commit?
(I was on holiday yesterday and didn't want to spend a sunny
afternoon doing bisects.)

Makes sense :)


I've just done that and it is bad.

Is there any way to bisect through the parts of the
drm merge patch into v5.10-rc1 ?

That ought to be quicker (and less error prone) than
the bisect builds I was doing.

Note that the stack 'splat' is due to a later change.
It is separate from the broken pixel alignment.

I actually saw the vga text go 'funny' while the boot
was outputting all the [OK] messages (from systemd?)
before the graphic login stole tty1 (bloody stupid
to use tty1).

I don't need to use the failing system today, I'll
have another go at isolating the failure.

You can use drm-tip for testing, where many of the DRM patches go through.

  https://cgit.freedesktop.org/drm/drm-tip/

It's fairly up-to-date.

I have two systems with AST chips and neither shows any of the symptoms you describe; nor do we have such reports about drivers that use a similar stack (hibmc, bochs). Could you provide the output of

  dmesg | grep drm

Best regards
Thomas


	David

-
Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)


--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer

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